Reese 7031400 Tri-Ball Mount with Hook Hitch ball sizes of 1-7/8 inches 2 inches and 2-5/16 inches Length of 8 inches Up to 200 pounds tongue weight and gross towing weight of 2000 pounds for 1-7/8 inch hitch ball 600 pounds tongue weight and gross towing weight of 6000 pounds for 2 inch hitch ball Up to 1000 pounds tongue weight and gross towing weight of 10000 pounds for 2-5/16 inch hitch ball and 10000 pounds gross towing weight for hook You should always consult the vehicles owners manual for maximum towing capacity